使用jq提取内部数组匹配值

Question

My json is as shown below:

[
[
    {
        "id": "abcd"
    },
    {
        "address": [
            "140 Deco st"
        ]
    }
],
[
    {
        "id": "xyz"
    },
    {
        "dummy": "This is dummy"
    }
],
[
    {
        "id": "12356"
    },
    {
        "address": [
            "140 Deco st"
        ]
    }
]]

Now, I want to capture only those ids who have dummy value of "This is dummy". Some of the data may or may not have dummy and address fields.

I tried below but it gave me error "... cannot have their containment checked"

jq -c '.[] | .[] | select(.dummy | contains("This is dummy")) | .[] | .id'

Any help is much appreciated!

Answer 1

contains is quite tricky to use correctly. Since the requirement is:

to capture only those ids who have dummy value of "This is dummy"

I would suggest:

.[]
| select( any(.[]; .dummy == "This is dummy") )
| add
| .id

or perhaps (depending on your detailed requirements):

.[]
| select( any(.[]; .dummy == "This is dummy") )
| .[]
| .id? // empty